How severe is CVE-2016-10809?

CVE-2016-10809 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-10809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10809?

CVE-2016-10809 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10809?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-10809 published?

CVE-2016-10809 was published on 2019-08-07 and last updated on 2026-06-17.

CVE-2016-10809

CVE-2016-10809 is a high-severity vulnerability in Cpanel with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cpanel
Published: 2019-08-07
Last modified: 2026-06-17

Description

In cPanel before 57.9999.54, /scripts/checkinfopages exposed a TTY to an unprivileged process (SEC-114).

Frequently asked questions

What is CVE-2016-10809?: In cPanel before 57.9999.54, /scripts/checkinfopages exposed a TTY to an unprivileged process (SEC-114).
How severe is CVE-2016-10809?: CVE-2016-10809 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-10809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10809?: CVE-2016-10809 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-10809 published?: CVE-2016-10809 was published on 2019-08-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*

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